Put iPhone in DFU Mode

First lets learn what is DFU mode? DFU stands for “Device Firmware Update”, this term is associated with Apple iOS devices like iPhone, iPad, and iPod Touch. Why Enter DFU mode? If a restore using Recovery Mode doesn’t work you will want to use DFU Mode as a last resort. When placing your iOS device into DFU Mode it does not load the OS before attempting the restore, also entering DFU mode makes it possible for the jailbreak software to access your iOS device and jailbreak it, and install Cydia.

Enter DFU mode

Entering DFU mode is quite simple and there are to ways to put your iOS device in DFU mode, the most common method is to enter DFU mode is to do it manually using the device HOME and POWER buttons, but in some cases the device power button may be not be working for some reason, then there is another way of entering DFU mode using a software call iREB, the downside for this 2nd method is that it works only for windows computers.

How to Put iPhone in DFU mode manually:

Launch iTunes and connect your device to the computer.

Press and hold the (Home button + Power button) at the same time.

After exactly 10 seconds release only the Power button and continue holding the home button until your iTunes pops up a message telling you that it has detected an iPhone in recovery mode.

Your iPhone screen should remain black.

Thats it! You just entered DFU mode.

DFU Mode Without Power Button:

As we mentioned above that in some cases, you might be needing to enter DFU mode but without using the Power Button, or the Home Button. In this case you can use iREB which will enter your iOS device in DFU mode automatically without the sleep button: